apologies in advance if this question was asked before, or discussed ad nauseum. Tried to use search function but couldn't find much.
So as the title states, should moons be scanned or not? Sometimes gas giants have over 5 moons, and you gotta be close enough to scan them which takes considerable amount of time.
A) Close orbiting moons of gas giants are where you are most likely to find vulcanism and interesting features
B) You're doing it wrong. Target the closest moon of the gas giant and fly up to scanning range, you will be in range for many of the moons. If you start with the furthest out you will need to move closer each time to scan every moon. That way you can get the primary and at least a good half dozen with no need to move at all, you can then ignore the rest or move the small distance required to scan them, it's usually not much if you start inward working out. We need a proper map is what we need, the view we get at the moment simply doesn't convey enough information.
C) Even so I don't scan every moon, I scan the ones I think will be interesting, vulcanism, unusual colouring, possible terraformable.
D) There is no "right way" to do these things, there's your way and my way and other peoples way, feel free to ignore everything I have posted
The important thing is, have fun out there, if you don't find it fun, don't do it!